8673a8c567
Summary: Closes https://github.com/facebook/rocksdb/pull/2589 Differential Revision: D5431502 Pulled By: siying fbshipit-source-id: 8ebf8c87883daa9daa54b2303d11ce01ab1f6f75
56 lines
1.7 KiB
C++
56 lines
1.7 KiB
C++
// Copyright (c) 2011-present, Facebook, Inc. All rights reserved.
|
|
// This source code is licensed under both the GPLv2 (found in the
|
|
// COPYING file in the root directory) and Apache 2.0 License
|
|
// (found in the LICENSE.Apache file in the root directory).
|
|
|
|
#ifndef ROCKSDB_LITE
|
|
|
|
#include "rocksdb/utilities/debug.h"
|
|
|
|
#include "db/db_impl.h"
|
|
|
|
namespace rocksdb {
|
|
|
|
Status GetAllKeyVersions(DB* db, Slice begin_key, Slice end_key,
|
|
std::vector<KeyVersion>* key_versions) {
|
|
assert(key_versions != nullptr);
|
|
key_versions->clear();
|
|
|
|
DBImpl* idb = static_cast<DBImpl*>(db->GetRootDB());
|
|
auto icmp = InternalKeyComparator(idb->GetOptions().comparator);
|
|
RangeDelAggregator range_del_agg(icmp, {} /* snapshots */);
|
|
Arena arena;
|
|
ScopedArenaIterator iter(idb->NewInternalIterator(&arena, &range_del_agg));
|
|
|
|
if (!begin_key.empty()) {
|
|
InternalKey ikey;
|
|
ikey.SetMaxPossibleForUserKey(begin_key);
|
|
iter->Seek(ikey.Encode());
|
|
} else {
|
|
iter->SeekToFirst();
|
|
}
|
|
|
|
for (; iter->Valid(); iter->Next()) {
|
|
ParsedInternalKey ikey;
|
|
if (!ParseInternalKey(iter->key(), &ikey)) {
|
|
return Status::Corruption("Internal Key [" + iter->key().ToString() +
|
|
"] parse error!");
|
|
}
|
|
|
|
if (!end_key.empty() &&
|
|
icmp.user_comparator()->Compare(ikey.user_key, end_key) > 0) {
|
|
break;
|
|
}
|
|
|
|
key_versions->emplace_back(ikey.user_key.ToString() /* _user_key */,
|
|
iter->value().ToString() /* _value */,
|
|
ikey.sequence /* _sequence */,
|
|
static_cast<int>(ikey.type) /* _type */);
|
|
}
|
|
return Status::OK();
|
|
}
|
|
|
|
} // namespace rocksdb
|
|
|
|
#endif // ROCKSDB_LITE
|